HOT: Active* forum members generally gain 5% discount at starbike.com store!
Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Articles FAQ Contact About




Post new topic Reply to topic  [ 28 posts ] 
Go to page 1, 2  Next
Author Message
PostPosted: Sat Feb 07, 2015 4:05 am 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 431
Location: Irvine, CA
Does anyone have one? I just ordered one in size 52. Was looking to take off a few pounds. Other than the stem, bars and seat.......does anyone know if the brake components can be lightened? Where to get light weight skewers for disc wheels? Please give me your thoughts and ideas...thanks


Last edited by mnmasotto on Mon Feb 09, 2015 4:26 pm, edited 1 time in total.

Top
 Profile  
 
Posted: Sat Feb 07, 2015 4:05 am 


Top
  
 
PostPosted: Sun Feb 08, 2015 3:41 am 
Offline

Joined: Mon Dec 08, 2014 11:54 am
Posts: 20
As stock it is a decent weight for a disc bike.
You could change the calipers to XTR race ones.


Top
 Profile  
 
PostPosted: Sun Feb 08, 2015 4:21 am 
Offline

Joined: Sat Jun 16, 2012 3:12 am
Posts: 256
I would imagine the wheels would be good candidates, not sure what their hubs weigh. But be careful; they have that funky rear offset. (Not sure if you can get a different derailleur hanger that would allow standard rear hub?)

If they are QR wheels, the hex bolt skewers are light without necessarily becoming flexy. Cheap steel ones will probably still save you measurable weight. But I really like the DT Swiss skewers; maybe in titanium if you want to shave weight (mine are steel).


Top
 Profile  
 
PostPosted: Sun Feb 08, 2015 12:10 pm 
Offline

Joined: Mon Dec 08, 2014 11:54 am
Posts: 20
The bike will come with 2 hangers. One for running the Rovals (cassette is spaced to a 130mm hub) & another to run any other 135mm disc hub.


Top
 Profile  
 
PostPosted: Sun Feb 08, 2015 1:13 pm 
Offline

Joined: Sat Jun 16, 2012 3:12 am
Posts: 256
Ah, that is great that they provide the hanger needed for running standard rear wheel. My vote would be wheels, then.


Top
 Profile  
 
PostPosted: Wed Feb 11, 2015 7:22 pm 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 431
Location: Irvine, CA
Pottsy wrote:
The bike will come with 2 hangers. One for running the Rovals (cassette is spaced to a 130mm hub) & another to run any other 135mm disc hub.


I just spoke to my Specialized Bicycle Dealer....They were not aware on these bikes coming with two rear derailor hangers...Where did you get this info???


Top
 Profile  
 
PostPosted: Thu Feb 12, 2015 7:26 am 
Offline

Joined: Wed Jan 22, 2014 11:48 am
Posts: 377
Taking off a few pounds is gonna cost you dearly.

The best way would be to sell all parts and start a new build with the frame alone.

_________________
Carbon is real.


Top
 Profile  
 
PostPosted: Thu Feb 12, 2015 12:05 pm 
Offline

Joined: Mon Dec 08, 2014 11:54 am
Posts: 20
mnmasotto wrote:
Where did you get this info???


I just know these things.

Plus I have built a few of them.


Top
 Profile  
 
PostPosted: Thu Feb 12, 2015 3:07 pm 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 431
Location: Irvine, CA
Got It.......thanks Pottsy
Anything I need to know when ordering the XTR calipers? About how much weight do you think I can save?


Top
 Profile  
 
PostPosted: Thu Feb 12, 2015 10:55 pm 
Offline

Joined: Tue Apr 22, 2008 4:31 am
Posts: 154
@ mnmasotto

What calipers come with the bike ?

R785's or RS785's ? If just the R's, then they have the banjo fitting, and the XTR's should bolt straight on, but if the RS, these have the straight fitting and will need a new set of lines to suit the caliper you are changing to.


Top
 Profile  
 
PostPosted: Fri Feb 13, 2015 3:42 pm 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 431
Location: Irvine, CA
I have the R875 hydraulic calipers. What kind of weight savings are we talking about? Do any of you know the model number for the XTR caliper? Thanks in advance.


Top
 Profile  
 
PostPosted: Fri Feb 13, 2015 5:32 pm 
Offline
User avatar

Joined: Thu Oct 26, 2006 8:54 pm
Posts: 415
Location: USA
Changing hydro calipers to me seems like a crazy way to try to save weight. It's going to be expensive, non trivial (you'll need to do a very thorough bleed), unknown savings (at present), and who's to say that the amount of fluid that the road levers push is identical to the XTR mtb levers? Maybe it is, but are you really that eager to find out?

Also, I know that the XTR brakes have changed since this post, but check out the savings between trail and racehere
I suspect that your R785 are similar in design to the XTR trail, and that by changing calipers most of the weight savings you'd see would be just from the elimination of the cooling fins on the pads. I suppose you could instead just get different (lighter) pads for your calipers, but reducing cooling capacity in a disc brake seems a bad way to save weight.

_________________
Enjoying my Funk


Top
 Profile  
 
PostPosted: Sat Feb 14, 2015 6:27 am 
Offline

Joined: Mon Dec 08, 2014 11:54 am
Posts: 20
So here are some things you can do.

swap to XTR calipers. lighter yes. (shimano says you will have less power than the current XT ones)
build some light weight wheels. (chainline will be affected)
get some narrow bars. (you may not like them)

If you bought it as a complete bike it will be a Di2 only frame. So no group set swap, at lease until SRAM wireless gets released.


Top
 Profile  
 
PostPosted: Sun Feb 15, 2015 5:49 pm 
Offline

Joined: Mon Jun 06, 2011 7:16 pm
Posts: 431
Location: Irvine, CA
First thing I did was exchange the stock skewers for Extralite Strreters. I love these skewers. They weight 28 grams and work very well. I did not weight the stock S-Works skewers as the batteries in my scale are dead. However, I am certain they weight at least 120 grams. I see there are a few large steel bolts on the bike. Namel, the stock brake caliper bolts, seat clamp bolts and the stock seat is not the S-Works variant. Any other ideas???


Top
 Profile  
 
Posted: Sun Feb 15, 2015 5:49 pm 


Top
  
 
PostPosted: Sun Feb 15, 2015 10:26 pm 
Offline

Joined: Tue Apr 22, 2008 4:31 am
Posts: 154
Pottsy wrote:
So here are some things you can do.

swap to XTR calipers. lighter yes. (shimano says you will have less power than the current XT ones)
.....


There will be no difference in power, as the caliper piston sizes are the same (22mm dia - 2 off).

They even take the same pads, so no difference there


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 28 posts ] 
Go to page 1, 2  Next


Who is online

Users browsing this forum: Bing [Bot], crn, Dallez, Majestic-12 [Bot], rbrtwyn, torob and 45 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. S-Works McLaren Tarmac...

[ Go to page: 1, 2, 3, 4, 5 ]

in Road

mile2424

65

8207

Thu Jul 24, 2014 9:05 pm

jwilliams View the latest post

There are no new unread posts for this topic. Attachment(s) S-Works Tarmac Stack & Reach

[ Go to page: 1, 2, 3 ]

in Road

Barters

41

2304

Sun Oct 12, 2014 7:35 pm

highdraw View the latest post

There are no new unread posts for this topic. Attachment(s) S-Works Tarmac is bloody obease

[ Go to page: 1, 2, 3, 4 ]

in Road

kentbrockman

55

6263

Sun Jan 18, 2015 3:51 pm

lechat View the latest post

There are no new unread posts for this topic. Attachment(s) S-Works Tarmac SL3 Headset Bearing Cover HELP

in Road

tk2306

6

599

Thu Sep 04, 2014 1:36 am

tk2306 View the latest post

There are no new unread posts for this topic. Hi Advice S Works Tarmac vs Canyon ultimate cf SLX

in Road

Windstopper

4

800

Thu Jan 01, 2015 11:32 pm

bfno View the latest post


It is currently Sat Feb 28, 2015 10:08 pm

All times are UTC + 1 hour




Advertising   –  FAQ   –  Contact   –  Convert   –  About

© Weight Weenies 2000-2013
hosted by starbike.com


How to get rid of these ads? Just register!


Powered by phpBB



+++ ONLY FOR SHORT TIME +++
-10% on Schmolke        Discunt will be shown / added at the shopping basket. NOT combinable with regular WW discount!
▹ TLO Oversize road bar
▹ TLO FullOversize road bar 46cm
▹ SL Triathlon Bar
▹ TLO Triathlon Bar